:root {
    --primary: #0256FF ;
    --primary-hover: #1d4ed8;
    --bg: #f6f9fc;
    --text: #222;
    --gray: #666;
    --border: #e5e7eb;
    --radius: 12px;
    --shadow: 0 2px 12px rgba(0,0,0,0.08);
  }
 ul, li{
    list-style: none; 
    padding: 0px;
  }
  body {
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    margin: 0;
  }
  
  a {
    color: var(--primary);
    text-decoration: none;
  }
  
  .container {
    width: 1200px;
    margin: 0 auto;
  }
  
  .header {
    background: #fff;
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 10;
  }
  
  .nav-container {
    display: flex;
    align-items: center;
    height: 64px;
    justify-content: space-between;
  }
  .logo {
    display: flex;
    align-items: center;
    gap: 10px;
    color: rgb(32, 33, 36);
    font-family: 旁门正道标题体;
    font-size: 24px;
    font-weight: 400;
    line-height: 27px;
    letter-spacing: 0px;
    text-align: left;
  }
  .logo {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--primary);
  }
  
  .nav {
    display: flex;
    gap: 32px;
  }
  
  .nav-link {
    color: var(--gray);
    font-size: 1rem;
    line-height: 60px;
    position: relative;
    transition: color 0.2s;
  }
  
  .nav-link.active,
  .nav-link:hover {
    color: var(--primary);
  }
  
  .nav-link.active::after,
  .nav-link:hover::after {
    content: '';
    display: block;
    height: 2px;
    background: var(--primary);
    width: 100%;
    position: absolute;
    left: 0;
    bottom: -2px;
    border-radius: 2px;
  }
  
  .hero-content {
    height: 100%;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: flex-start;
    z-index: 2;
    position: relative;
  }
  #hero {
    width: 100%;
    height: 720px;
    position: relative;
    background-image: url('../static/hero-image.png'); /* 设置背景图片 */
    background-size: cover; /* 让图片覆盖整个容器 */
    background-position: center; /* 图片居中显示 */
    background-repeat: no-repeat; /* 禁止重复 */
  }
  .hero-content h1 {
    color: rgb(29, 33, 48);
    font-family: HarmonyOS Sans SC;
    font-size: 56px;
    font-weight: 700;
    line-height: 76px;
    letter-spacing: 0px;
    margin-bottom: 25px;
    text-align: left;
  }
  .hero-content p {
      color: rgb(114, 119, 129);
      font-family: HarmonyOS Sans SC;
      font-size: 24px;
      font-weight: 400;
      line-height: 28px;
      letter-spacing: 0px;
      text-align: left;
      margin-bottom: 78px ;
  }

.hero-btns{
  position: relative;
}
@keyframes popupAnimation {
  from {
    transform: scale(0.3);
    opacity: 0.3;
  }
  to {
    transform: scale(1);
    opacity: 1;
  }
}

.qrcode{
  width: 346px;
  height: 404px;
  position: absolute;
  right: -366px;
  top: -202px;
  padding: 20px;
  box-sizing: border-box;
  background-image: url('../static/wxbg.png');
  /* 设置背景图片 */
  background-size: cover;
  /* 让图片覆盖整个容器 */
  background-position: center;
  /* 图片居中显示 */
  background-repeat: no-repeat;
  text-align: center;
  display: none;
}
  .hero-btns .qrcode p{
    margin: 20px 0;
    text-align: center;
    width: 100%;
  }
  .hero-btns:hover > .qrcode{
    display: block;
    animation: popupAnimation 0.3s ease forwards;
  }
  .hero-btns .qrcode p:first-child{
    color: rgb(2, 86, 255);
    font-family: HarmonyOS Sans SC;
    font-size: 24px;
    font-weight: 700;
    line-height: 28px;
    letter-spacing: 0px;
  }
  .hero-btns .qrcode p:last-child{
    color: rgb(122, 135, 154);
    font-family: HarmonyOS Sans SC;
    font-size: 16px;
    font-weight: 400;
    line-height: 19px;
    letter-spacing: 12px;
  }
  .hero-btns .qrcode img{
    width: 240px;
    height: 240px;
  }
  .btn {
    padding: 12px 32px;
    border: none;
    border-radius: var(--radius);
    font-size: 1rem;
    cursor: pointer;
    background: var(--primary);
    color: #fff;
    transition: background 0.2s;
  }
  
  .btn-primary:hover {
    background: var(--primary-hover);
  }
  
  .platform-tabs {
    background: #fff;
    padding: 48px 0 32px 0;
  }
  
  .section-title {
    font-size: 2rem;
    font-weight: 600;
    text-align: center;
    margin-bottom: 8px;
  }
  
  .section-desc {
    text-align: center;
    color: #727781;
    margin-bottom: 24px;
  }
  
  .tabs {
    display: flex;
    justify-content: center;
    gap: 24px;
    margin-bottom: 32px;
  }
  
  .tab {
    background: #f3f4f6;
    width: 380px;
    height: 86px;
    font-size: 24px;
    padding: 0;
    color: var(--gray);
    cursor: pointer;
    box-sizing: border-box;
    border: 1px solid rgb(255, 255, 255);
    border-radius: 12px;
    box-shadow: 0px 0px 24px 0px rgba(133, 196, 255, 0.15);
    transition: background 0.2s, color 0.2s;
  }
  
  .tab.active {
    background-image: url('../static/platformTabs-bg.png');
    background-size: 120%; /* 让图片覆盖整个容器 */
    background-repeat: no-repeat; /* 禁止重复 */
    background-position: center;
    color: var(--primary);
    font-weight: 600;
  }
  
  .tab-content {
    min-height: 320px;
    display: flex;
    justify-content: center;
    align-items: center;
  }
  
  .tab-panel {
    display: none;
  }
  
  .tab-panel.active {
    display: block;
  }
  @keyframes zoomInCenter {
    from { transform: scale(0); opacity: 0;}
    to { opacity: 1; transform: scale(1);}
  }
  .tab-panel-from{
    animation: zoomInCenter 0.5s ease-in-out forwards;
  }
  .card-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
  }
  
  .sys-card {
    border-radius: var(--radius);
    box-shadow: none;
    padding: 24px 28px;
    text-align: center;
    transition: transform 0.2s, box-shadow 0.2s;
    cursor: pointer;
    border: 1px solid transparent;
  }
  
  .sys-card:hover {
    transform: translateY(-6px) scale(1.03);
    box-shadow: 0 6px 24px rgba(37,99,235,0.10);
    border: 1px solid var(--primary);
  }
  
  .sys-icon {
    width: 66px;
    height: 66px;
    margin: 0 auto 12px auto;
    background-image: url('../static/sys-icons.png');
    background-position: 0px -0px;
  }
  .sys-title {
    font-weight: 600;
    margin-bottom: 6px;
  }
  .tab-panel .card-grid .sys-card:nth-child(2) .sys-icon{
    background-position: -95px -0px;
  }
  .tab-panel .card-grid .sys-card:nth-child(3) .sys-icon{
    background-position: -190px -0px;
  }
  .tab-panel .card-grid  .sys-card:nth-child(4) .sys-icon{
    background-position: -278px -0px;
  }
  .tab-panel .card-grid  .sys-card:nth-child(5) .sys-icon{
    background-position: -375px -0px;
  }
  .tab-panel .card-grid  .sys-card:nth-child(6) .sys-icon{
    background-position: -465px -0px;
  }
  .tab-panel .card-grid  .sys-card:nth-child(7) .sys-icon{
    background-position: -555px -0px;
  }
  .tab-panel .card-grid  .sys-card:nth-child(8) .sys-icon{
    background-position: -650px -0px;
  }
  .tab-panel .card-grid  .sys-card:nth-child(9) .sys-icon{
    background-position: -745px -0px;
  }
  .tab-panel .card-grid  .sys-card:nth-child(10) .sys-icon{
    background-position: -840px -0px;
  }
  .tab-panel .card-grid  .sys-card:nth-child(11) .sys-icon{
    background-position: -928px -0px;
  }
  .tab-panel .card-grid  .sys-card:nth-child(12) .sys-icon{
    background-position: -1020px -0px;
  }

  .sale  .sys-icon{
    background-position-y: -90px !important;
  }
  .manage  .sys-icon{
    background-position-y: -190px !important;
  }

    
  .sys-desc {
    color: var(--gray);
    font-size: 0.95rem;
  }
  
  .core-services {
    background: #f3f4f6;
    padding: 48px 0 32px 0;
  }
  .core-services .section-desc {
    width: 1000px;
    margin: 0 auto;
    color: rgb(114, 119, 129);
    font-family: HarmonyOS Sans SC;
    font-size: 20px;
    font-weight: 400;
    line-height: 32px;
    letter-spacing: 0px;
    text-align: center;
    margin-bottom: 60px;
  }
  .isShow {
    display: none;
  }
  .service-card.active .isShow{
    display: block;
  }
  .service-grid {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
  }
  
  .service-card {
    position: relative;
    display: flex;
    flex-direction: column;
    justify-content: end;
    padding: 0px 20px;
    width: 250px;
    height: 375px; 
    border-radius: 1rem;
    background-image: url('../static/core.png');
    background-position: -385px 0px;
    background-repeat: no-repeat;
    background-size: auto;
    transition: all 0.5s; /* 定义宽度变化的过渡效果，持续时间为2秒 */
  }
  .service-card:nth-child(3)::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(180.00deg, rgba(56, 63, 244, 0.2),rgb(121, 56, 244) 99.921%);
    z-index: 1; /* 将蒙版层置于内容之下 */
  }
  .service-card:nth-child(2)::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(180.00deg, rgba(56, 96, 244, 0.2),rgb(56, 96, 244));
    z-index: 1; /* 将蒙版层置于内容之下 */
  }
  .service-card:nth-child(1)::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(180.00deg, rgba(56, 153, 244, 0.2) 2.046%,rgb(56, 153, 244) 99.601%);
    z-index: 1; /* 将蒙版层置于内容之下 */
  }
  .service-card > * {
    position: relative; /* 提升内容层级 */
    z-index: 2;
  }
  .service-card.active h3 {
    color: rgb(255, 255, 255);
    font-family: HarmonyOS Sans SC;
    font-size: 28px;
    font-weight: 700;
    line-height: 40px;
    letter-spacing: 0px;
    text-align: left;
  }
  .service-card.active ul{
    padding: 0;
  }
  .service-card.active li {
    color: rgb(255, 255, 255);
    padding-left: 0;
    margin-top: 20px;
    font-family: HarmonyOS Sans SC;
    font-size: 22px;
    font-weight: 400;
    line-height: 40px;
    letter-spacing: 0px;
    text-align: left;
  }
  .icon-container {
    display: none;
    background-color: #92CDFF80;
    border-radius: 5px;
    border-radius: 50%;
    margin-right: 10px;
    text-align: center;
    line-height: 30px;
    width: 32px;
    height: 32px;
    border: 2px solid #fff;
  }
  .check-icon {
    color: #007bff;
    font-size: 38px;
    font-weight: bold;
  }
  .service-card.active{
    width: 650px;
    justify-content: center;
    background-position: -116px 0px;
  }
  .service-card.active .icon-container{
    display: inline-block;
  }
  .service-card.active::before{
    /* background: linear-gradient(90.00deg, rgb(237, 239, 249) 15.457%,rgba(237, 239, 249, 0.6) 100%); */
  }
  .service-card h3  {
    color: rgb(255, 255, 255);
    font-family: HarmonyOS Sans SC;
    font-size: 28px;
    font-weight: 700;
    line-height: 40px;
    letter-spacing: 0px;
    text-align: left;
  }

  .service-card li{
    color: rgb(215, 223, 254);
    font-family: HarmonyOS Sans SC;
    font-size: 16px;
    font-weight: 400;
    line-height: 28px;
    letter-spacing: 0px;
    text-align: left;
  }
  
  .customer-service {
    height: 492px;
    width: 100%;
    background-image: url('../static/service-bg.png');
    background-size: cover; /* 让图片覆盖整个容器 */
    background-position: center; /* 图片居中显示 */
    background-repeat: no-repeat; /* 禁止重复 */
  }
  
  .service-content {
    display: flex;
    height: 100%;
    align-items: center;
    justify-content: space-between;
  }
  .service-content p{
    margin-top: 30px;
    margin-bottom: 60px;
  }
  
  /* 底部 */

  .footer {
    width: 100%;
    background: #232733;
    color: #fff;
    padding: 40px 0 30px 0;
    font-size: 16px;
  }
  .footer-main {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: flex-start;
    gap: 32px;
    padding: 0 24px;
  }
  .footer-links {
    display: flex;
    gap: 48px;
    flex: 2;
    min-width: 220px;
  }
  .footer-links h4 {
    margin-bottom: 20px;
    color: rgb(255, 255, 255);
    font-family: HarmonyOS Sans SC;
    font-size: 16px;
    font-weight: 700;
    line-height: 19px;
    letter-spacing: 0px;
    text-align: left;
  }
  .footer-links ul {
    list-style: none;
    padding: 0;
  }
  .footer-links li {
    margin-bottom: 20px;
  }
  .footer-links a {
    color: #bfc6d1;
    text-decoration: none;
    color: rgb(153, 153, 153);
    font-family: HarmonyOS Sans SC;
    font-size: 14px;
    font-weight: 400;
    line-height: 16px;
    letter-spacing: 0px;
    transition: color 0.2s;
  }
  .footer-links a:hover {
    color: #1cb5fc;
    text-decoration: underline;
  }
  .footer-contact {
    flex: 2;
    min-width: 220px;
    color: #fff;
  }
  .contact-label {
    color: rgb(153, 153, 153);
    font-family: HarmonyOS Sans SC;
    font-size: 16px;
    font-weight: 500;
    line-height: 19px;
    letter-spacing: 0px;
    text-align: left;
    margin-bottom: 12px;
  }
  .contact-phone {
    color: rgb(255, 255, 255);
    font-family: HarmonyOS Sans SC;
    font-size: 32px;
    font-weight: 700;
    line-height: 38px;
    letter-spacing: 0px;
    text-align: left;
    margin-bottom: 20px;
  }
  .contact-link{
    margin-bottom: 20px;
  }
  .contact-link span {
    color: rgb(255, 255, 255);
    font-family: HarmonyOS Sans SC;
    font-size: 16px;
    font-weight: 500;
    line-height: 19px;
    letter-spacing: 0px;
    text-align: left;
  }
  .contact-address {
    color: rgb(255, 255, 255);
    font-family: HarmonyOS Sans SC;
    font-size: 16px;
    font-weight: 500;
    line-height: 19px;
    letter-spacing: 0px;
    text-align: left;
  }
  .footer-qrcodes {
    display: flex;
    flex-direction: row;
    gap: 32px;
    flex: 1.5;
    min-width: 180px;
    justify-content: center;
  }
  .qrcode-block {
    display: flex;
    flex-direction: column;
    align-items: center;
  }
  .qrcode-img {
    width: 130px;
    height: 130px;
    background: #fff;
    border-radius: 8px;
    margin-bottom: 8px;
    transition: box-shadow 0.2s, transform 0.2s;
    box-shadow: 0 2px 8px rgba(0,0,0,0.12);
    cursor: pointer;
  }
  .qrcode-img:hover {
    box-shadow: 0 4px 16px #1cb5fc88;
    transform: scale(1.05);
  }
  .qrcode-label {
    color: #bfc6d1;
    font-size: 15px;
    text-align: center;
  }
  
  .modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0; top: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.25);
    align-items: center;
    justify-content: center;
  }
  
  .modal.active {
    display: flex;
  }
  
  .modal-content {
    background: #fff;
    border-radius: var(--radius);
    padding: 32px 40px;
    box-shadow: var(--shadow);
    text-align: center;
    position: relative;
    min-width: 260px;
  }
  
  .close {
    position: absolute;
    right: 18px;
    top: 12px;
    font-size: 1.5rem;
    color: var(--gray);
    cursor: pointer;
  }
  
  /* @media (max-width: 900px) {
    .banner-content, .service-content, .footer-content {
      flex-direction: column;
      align-items: flex-start;
      gap: 24px;
    }
    .banner-img, .service-img {
      align-self: center;
    }
    .footer-links {
      flex-direction: column;
      gap: 18px;
    }
    .footer-qrcodes {
      gap: 18px;
    }
  }
  
  @media (max-width: 600px) {
    .container {
      padding: 0 8px;
    }
    .banner-content h1 {
      font-size: 1.5rem;
    }
    .section-title {
      font-size: 1.2rem;
    }
    .card-grid {
      grid-template-columns: 1fr;
    }
    .service-grid {
      flex-direction: column;
      gap: 16px;
    }
    .modal-content {
      padding: 18px 8px;
    }
  } */